Qijia Culture, Notched Jade Ring, 齊家文化牙瑗D. 8cm, T.0.2cm, 60grams

Based on the size of inner hole, this object should be called a ring. With notches on the outer edge of the ring, it is thus a notched ring. The notches are divided into three major sections which represent the heaven the earth and the human beings , each section has four group notches which may be represent four seasons. Antiquity evidences include exposed crystal plane,differential weathering and diffusive marking.本玉瑗白玉雕成, 外緣齒牙分三等分佈置,意味天地人三才, 每一等分再分四等分, 意味四季風調雨順. 曝露晶面古玉跡象明顯.